:root {
    --color-deep-blue: #020826;
    --color-galaxy-purple: #47407A;
    --color-matrix-green: #00E8C4;
    --color-gold-dust: #E6D0AA;
    --color-soft-light: #A0B9C9;
    --color-accent-dark: #004d40;
    --color-cyber-pink: #ff79c6;
    --color-cyber-amber: #ffb86c;
    --color-cyber-green: #50fa7b;
    --color-cyber-red: #ff5555;
    --color-terminal-bg: rgba(3, 10, 48, 0.88);
}

body {
    font-family: 'Montserrat', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    background-color: var(--color-deep-blue);
    color: var(--color-soft-light);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

.game-wrapper {
    text-align: center;
    background-color: var(--color-terminal-bg);
    padding: 25px 28px;
    border-radius: 16px;
    box-shadow: 0 10px 35px rgba(0, 0, 0, 0.85), 0 0 25px rgba(0, 232, 196, 0.2);
    border: 1px solid rgba(0, 232, 196, 0.35);
    max-width: 480px;
    width: 100%;
    position: relative;
    user-select: none;
}

.game-header {
    margin-bottom: 16px;
}

.game-badge {
    display: inline-block;
    background-color: rgba(0, 232, 196, 0.12);
    color: var(--color-matrix-green);
    border: 1px solid var(--color-matrix-green);
    border-radius: 15px;
    padding: 3px 12px;
    font-size: 0.72em;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-family: 'JetBrains Mono', monospace;
    margin-bottom: 6px;
}

h2 {
    color: var(--color-matrix-green);
    margin: 0 0 5px 0;
    font-size: 1.85em;
    font-weight: 800;
    letter-spacing: 0.5px;
    text-shadow: 0 0 12px rgba(0, 232, 196, 0.4);
}

.subtitle {
    color: var(--color-soft-light);
    font-size: 0.88em;
    margin: 0;
    opacity: 0.85;
}

/* --- STATS PANEL --- */
.stats-panel {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 14px;
    background-color: rgba(71, 64, 122, 0.25);
    padding: 10px 8px;
    border-radius: 10px;
    border: 1px solid rgba(71, 64, 122, 0.55);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-label {
    font-size: 0.65em;
    font-weight: 700;
    color: var(--color-soft-light);
    letter-spacing: 0.8px;
    margin-bottom: 2px;
    font-family: 'JetBrains Mono', monospace;
}

.stat-val {
    font-size: 1.35em;
    font-weight: 800;
    color: var(--color-matrix-green);
    line-height: 1.1;
    font-family: 'JetBrains Mono', monospace;
}

.stat-val.gold {
    color: var(--color-gold-dust);
}

.stat-val.time {
    color: var(--color-matrix-green);
    transition: color 0.2s;
}

.stat-val.time.urgent {
    color: var(--color-cyber-red);
    animation: urgentPulse 0.5s infinite alternate;
}

@keyframes urgentPulse {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.15); opacity: 0.75; text-shadow: 0 0 8px var(--color-cyber-red); }
}

.stat-val.combo {
    color: var(--color-cyber-amber);
    transition: transform 0.2s, color 0.2s;
}

.stat-val.combo.active {
    color: var(--color-cyber-pink);
    text-shadow: 0 0 10px var(--color-cyber-pink);
    animation: comboPulse 0.3s ease-in-out;
}

@keyframes comboPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.3); }
    100% { transform: scale(1); }
}

/* --- TIMER PROGRESS TRACK --- */
.timer-progress-wrapper {
    margin-bottom: 14px;
}

.progress-track {
    width: 100%;
    height: 8px;
    background-color: rgba(2, 8, 38, 0.95);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid rgba(71, 64, 122, 0.5);
}

.progress-bar-fill {
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, var(--color-matrix-green), var(--color-gold-dust));
    transition: width 0.1s linear, background 0.3s;
}

/* --- BOARD FRAME --- */
.board-frame {
    background-color: var(--color-deep-blue);
    padding: 10px;
    border-radius: 12px;
    border: 1px solid var(--color-galaxy-purple);
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.9);
    display: inline-block;
    max-width: 100%;
    position: relative;
    overflow: hidden;
}

#board {
    display: grid;
    grid-template-columns: repeat(8, 42px);
    grid-template-rows: repeat(9, 42px);
    gap: 4px;
    margin: 0 auto;
    justify-content: center;
}

/* --- BLOCKS --- */
.block {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 800;
    font-family: 'JetBrains Mono', monospace;
    cursor: pointer;
    user-select: none;
    transition: transform 0.12s ease, filter 0.12s ease, box-shadow 0.12s ease;
    box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.25), 0 2px 5px rgba(0, 0, 0, 0.4);
}

/* Kolor 0: Cyjan (Bit 0) */
.block.color-0 {
    background: linear-gradient(135deg, #00E8C4 0%, #008f7a 100%);
    color: #020826;
    border: 1px solid #00ffda;
}

/* Kolor 1: Magenta (Bit 1) */
.block.color-1 {
    background: linear-gradient(135deg, #ff79c6 0%, #a33276 100%);
    color: #ffffff;
    border: 1px solid #ff99d4;
}

/* Kolor 2: Bursztyn/Złoto */
.block.color-2 {
    background: linear-gradient(135deg, #ffb86c 0%, #ab6922 100%);
    color: #020826;
    border: 1px solid #ffd096;
}

/* Kolor 3: Matrix Green */
.block.color-3 {
    background: linear-gradient(135deg, #50fa7b 0%, #238c3e 100%);
    color: #020826;
    border: 1px solid #7eff9f;
}

/* KLOCKI SPECJALNE */
.block.special-bomb {
    background: radial-gradient(circle, #ff5555 20%, #7a0000 100%) !important;
    border: 2px solid #ff9999 !important;
    color: #fff;
    box-shadow: 0 0 12px rgba(255, 85, 85, 0.7);
    animation: bombPulse 0.7s infinite alternate ease-in-out;
}

@keyframes bombPulse {
    from { transform: scale(0.96); box-shadow: 0 0 8px rgba(255, 85, 85, 0.5); }
    to { transform: scale(1.05); box-shadow: 0 0 16px rgba(255, 85, 85, 0.9); }
}

.block.special-laser {
    background: linear-gradient(135deg, #f1fa8c 0%, #bd93f9 100%) !important;
    border: 2px solid #ffffff !important;
    color: #020826;
    box-shadow: 0 0 14px rgba(241, 250, 140, 0.8);
    animation: laserGlow 0.5s infinite alternate ease-in-out;
}

@keyframes laserGlow {
    from { filter: brightness(1); }
    to { filter: brightness(1.3); }
}

/* Podświetlenie grupy przy najechaniu */
.block.highlight-group {
    transform: scale(1.06);
    filter: brightness(1.22);
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.6), inset 0 2px 4px rgba(255, 255, 255, 0.4);
    z-index: 10;
}

/* Animacja pękania (Pop) */
.block.popping {
    animation: popAnim 0.22s forwards ease-out;
    pointer-events: none;
}

@keyframes popAnim {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.25); opacity: 0.8; }
    100% { transform: scale(0); opacity: 0; }
}

/* Animacja spadania nowego klocka */
.block.dropping {
    animation: dropIn 0.25s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}

@keyframes dropIn {
    0% { transform: translateY(-30px); opacity: 0; }
    100% { transform: translateY(0); opacity: 1; }
}

/* Pływające punkty (Floating Score) */
.score-float {
    position: absolute;
    color: #00ffda;
    font-weight: 800;
    font-size: 1.2em;
    font-family: 'JetBrains Mono', monospace;
    pointer-events: none;
    z-index: 50;
    text-shadow: 0 0 8px rgba(0, 255, 218, 0.8), 0 2px 4px #000;
    animation: floatUp 0.7s forwards ease-out;
}

@keyframes floatUp {
    0% { transform: translate(-50%, 0) scale(0.9); opacity: 1; }
    100% { transform: translate(-50%, -35px) scale(1.15); opacity: 0; }
}

/* --- STATUS MESSAGE --- */
.game-status {
    font-size: 0.88em;
    font-weight: 600;
    margin-top: 14px;
    min-height: 22px;
    color: var(--color-soft-light);
    font-family: 'JetBrains Mono', monospace;
    transition: color 0.2s;
}

/* --- CONTROLS PANEL --- */
.controls-panel {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 16px;
}

.ctrl-btn {
    padding: 10px 18px;
    border-radius: 8px;
    font-family: inherit;
    font-weight: 700;
    font-size: 0.9em;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.restart-btn {
    background-color: var(--color-galaxy-purple);
    color: var(--color-soft-light);
    border-color: rgba(160, 185, 201, 0.3);
}

.restart-btn:hover {
    background-color: #5d5494;
    color: #fff;
    box-shadow: 0 0 10px rgba(93, 84, 148, 0.5);
}

.pause-btn {
    background-color: rgba(71, 64, 122, 0.4);
    color: var(--color-soft-light);
    border-color: rgba(160, 185, 201, 0.3);
}

.pause-btn:hover {
    background-color: rgba(71, 64, 122, 0.7);
    color: #fff;
}

/* --- BACK BUTTON --- */
.back-to-main-btn {
    position: absolute;
    top: 20px;
    left: 20px;
    background-color: var(--color-matrix-green);
    color: var(--color-deep-blue);
    padding: 10px 18px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 0.95em;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 232, 196, 0.3);
    z-index: 100;
}

.back-to-main-btn:hover {
    background-color: #00ffda;
    box-shadow: 0 0 15px rgba(0, 232, 196, 0.6);
    transform: translateY(-1px);
}

/* --- MODAL --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(2, 8, 38, 0.88);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
}

.modal-box {
    background: linear-gradient(145deg, rgba(71, 64, 122, 0.8) 0%, rgba(3, 10, 48, 0.98) 100%);
    border: 2px solid var(--color-matrix-green);
    border-radius: 14px;
    padding: 30px;
    max-width: 380px;
    width: 90%;
    text-align: center;
    box-shadow: 0 10px 35px rgba(0, 0, 0, 0.85), 0 0 25px rgba(0, 232, 196, 0.35);
}

.modal-box h3 {
    margin: 0 0 8px 0;
    color: var(--color-matrix-green);
    font-size: 1.7em;
    font-weight: 800;
    letter-spacing: 0.5px;
}

.modal-box p {
    color: var(--color-soft-light);
    margin: 0 0 18px 0;
    font-size: 0.92em;
}

.modal-stats {
    background-color: rgba(2, 8, 38, 0.65);
    border: 1px solid rgba(71, 64, 122, 0.5);
    border-radius: 8px;
    padding: 14px;
    margin-bottom: 20px;
    line-height: 1.7;
    font-size: 1.05em;
    font-family: 'JetBrains Mono', monospace;
    text-align: left;
}

.modal-play-btn {
    width: 100%;
    background-color: var(--color-matrix-green);
    color: var(--color-deep-blue);
    font-weight: 800;
    font-size: 1.05em;
    padding: 12px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.modal-play-btn:hover {
    background-color: #00ffda;
    box-shadow: 0 0 15px rgba(0, 232, 196, 0.6);
}

/* --- RESPONSIVE MOBILE --- */
@media (max-width: 768px) {
    body {
        padding: 15px 8px;
        align-items: flex-start;
    }
    .game-wrapper {
        padding: 18px 12px;
        margin-top: 50px;
    }
    .back-to-main-btn {
        position: static;
        display: block;
        text-align: center;
        margin-bottom: 15px;
        width: 100%;
        box-sizing: border-box;
    }
    #board {
        grid-template-columns: repeat(8, 36px);
        grid-template-rows: repeat(9, 36px);
        gap: 3px;
    }
    .block {
        width: 36px;
        height: 36px;
        font-size: 15px;
        border-radius: 6px;
    }
}